Simple structure, easy to use.Mainly used to bear radial load.When the radial clearance of bearing is increased, it has a certain function of angular contact ball bearing that can withstand the combined radial and axial load.In high speed cases where thrust ball bearing cannot be used, it can be used to bear pure axial load.Compared with other types of bearings of the same size, the coefficient of friction of such bearings is small, and the speed limit is high.However, such bearings cannot bear shocks, and are not suitable for bearing heavy loads.